nonrecurring

nonrecurring expenses

临时费用

Straw, a kind of natural biodegradable material, was used as reinforced fibers for preparing nonrecurring biodegradable flowerpots by compression molding technology.

采用廉价的秸秆为增强材料,为基体材料,通过模压成型制备出一次可生物降解花盆。